(Cover) - EN Showbiz - Justin Bieber has recorded a song with Usher for his Christmas album.

The 17-year-old pop star revealed he has teamed up with his mentor for a festive track. Justin has been working hard on the new album, and took to his Twitter account to tell fans about his latest collaboration.

"just finished a late nt in the studio for the christmas album...it is OFFICIAL...my big bro @UsherRaymondIV is on the album with me! #EPIC (sic)," Justin wrote on Sunday night.

Justin is thrilled with the song he has recorded with Usher. Even though he wouldn't divulge the name of the tune, he is confident his fans will enjoy hearing it.

"this duet with me and @USHERRAYMONDIV for #christmas is CRAZY!!! (sic)" Justin tweeted.

The heartthrob is releasing the Christmas record to raise money for his favourite charities.

Other stars rumoured to be featuring on it include Taylor Swift and Sean Kingston. Justin has already confirmed he is recording the track Falalalala with Boyz II Men and will also be working with The Band Perry. (C) Cover Media